Features: · Full Bridge Driver· High Sensitivity Hall Sensor· Locked Rotor Shutdown and Auto-Restart· Power-Efficient CMOS and Power MOSFETs· Integrated tachometer (US72) or alarm (US73) signal outputsApplication· For 12V/24V FansSpecifications Supply Voltage, VDD (overvoltage) 28V Output...
US73: Features: · Full Bridge Driver· High Sensitivity Hall Sensor· Locked Rotor Shutdown and Auto-Restart· Power-Efficient CMOS and Power MOSFETs· Integrated tachometer (US72) or alarm (US73) signal outp...
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Supply Voltage, VDD (overvoltage) | 28V |
Output Voltage, FG or RD | 28V |
Output Current, IOUT | 500mA |
Operating Temperature Range, TA | -40 to 85 |
Junction Temperature, Tj | 125 |
Storage Temperature, Ts | -55 to 150 |
ESD Sensitivity (AEC Q100 002) | 2KV |
Magnetic Flux Density | No limit |
The US72 and US73 provide a monolithic solution for driving single-coil fans. The bridge drivers provide bi-directional current through the single phase motor winding.
US72: The tachometer/Frequency Generator (FG) version produces a logic signal, which is aligned with the Hall plate signal.
US73: The Rotation Detector (RD) / Alarm Signal version has a low output in the normal condition. When a locked rotor condition occurs the RD changes to a high state.